| Gerontologie | gerontology |
| Erotologie | erotology |
| Deontologie | deontology |
| Gelotologie | gelotology |
| Chronologie | chronology |
| Odontologie | odontology |
| Ontologie | ontology |
| Dermatologie | dermatology |
| Herpetologie | herpetology |
| Neonatologie | neonatology |
| Protologie | protology |
| Gerontokratie | gerontocracy |
| Gerontophilie | gerontophilia |
| Kronkolonie | crown colony |
| Ontologe | ontologist |
| Ontologin | ontologist |
| Parodontologie | periodontics |
| Paläontologie | paleontology palaeontology |
| Akzentologie | accentology |
| Esperantologie | Esperantology |